Pictionary

Dave dragged the crayon around quickly in a circular pattern that expanded as it continued. I guessed "spiral" first, of course, then "vortex." Then came the cup beneath the spiral, and I said "canned peas" It didn't take much more than one leaf on the stem for me to know it was a rose, and three small flowers in a row made "rose garden."

I needn't explain "mobile home."